com.goldencode.p2j.ui.client

Class StaticCoordinatesConversionParams

java.lang.Object

com.goldencode.p2j.ui.client.ClientCoordinatesConversionParams

com.goldencode.p2j.ui.client.StaticCoordinatesConversionParams

All Implemented Interfaces:

CoordinatesConversionParams

public class StaticCoordinatesConversionParams
extends ClientCoordinatesConversionParams

The class resolves coordinate conversion parameters based on provided (thus constant) OutputManager instance.

The conversion parameters are read from the OutputManager instance when any of the conversion methods is called for the first time. Except for ClientCoordinatesConversionParams.getFontWidth(WidgetId, int) and ClientCoordinatesConversionParams.getFontHeight(WidgetId, int), the read parameters are cached locally in the instance.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	inited Lazy-initialization flag.
private boolean	isChui The isChui flag.
private OutputManager<?>	outputManager The static instance provided by this CoordinatesConversionParams implementation.
private int	pixelsPerColumn Pixels-per-column of the system font.
private int	pixelsPerRow Pixels-per-row of the system font.

Fields inherited from interface com.goldencode.p2j.ui.CoordinatesConversionParams

CHUI_PIXELS_PER_COLUMN, CHUI_PIXELS_PER_ROW

Constructor Summary

Constructors

Constructor and Description
StaticCoordinatesConversionParams(OutputManager<?> outputManager) Constructs new instance.

Method Summary

Modifier and Type	Method and Description
protected OutputManager<?>	getOutputManager() Returns a valid reference to a static OutputManager instance.
int	getPixelsPerColumn() Returns the number of pixels in each column of the display.
int	getPixelsPerRow() Returns the number of pixels in each row of the display.
private void	init() Performs lazy initialization.
boolean	isChui() Flag indicating the ChUI or GUI mode.

Methods inherited from class com.goldencode.p2j.ui.client.ClientCoordinatesConversionParams

getFontHeight, getFontWidth

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

outputManager

private OutputManager<?> outputManager

The static instance provided by this CoordinatesConversionParams implementation.

inited

private boolean inited

Lazy-initialization flag.

isChui

private boolean isChui

The isChui flag. This value never changes and thus can be cached.

pixelsPerColumn

private int pixelsPerColumn

Pixels-per-column of the system font. This value never changes and thus can be cached.

pixelsPerRow

private int pixelsPerRow

Pixels-per-row of the system font. This value never changes and thus can be cached.

Constructor Detail

StaticCoordinatesConversionParams

public StaticCoordinatesConversionParams(OutputManager<?> outputManager)

Constructs new instance.

Parameters:

outputManager - The static OutputManager reference.

Method Detail

init

private void init()

Performs lazy initialization.

isChui

public boolean isChui()

Flag indicating the ChUI or GUI mode.

Specified by:

isChui in interface CoordinatesConversionParams

Overrides:

isChui in class ClientCoordinatesConversionParams

Returns:

Boolean value indicating the ChUI or GUI mode.

getPixelsPerColumn

public int getPixelsPerColumn()

Returns the number of pixels in each column of the display. This usually corresponds to the 4GL attribute SESSION:PIXELS-PER-COLUMN.

Specified by:

getPixelsPerColumn in interface CoordinatesConversionParams

Overrides:

getPixelsPerColumn in class ClientCoordinatesConversionParams

Returns:

Number of pixels in each column.

getPixelsPerRow

public int getPixelsPerRow()

Returns the number of pixels in each row of the display. This usually corresponds to the 4GL attribute SESSION:PIXELS-PER-ROW.

Specified by:

getPixelsPerRow in interface CoordinatesConversionParams

Overrides:

getPixelsPerRow in class ClientCoordinatesConversionParams

Returns:

Number of pixels in each row.

getOutputManager

protected OutputManager<?> getOutputManager()

Returns a valid reference to a static OutputManager instance. The implementation returns the instance which was used during construction of this object.

Specified by:

getOutputManager in class ClientCoordinatesConversionParams

Returns:

A valid reference to OutputManager instance.